The Neuroscience of Comedy

“A couple of New Jersey hunters are out in the woods when one of them falls to the ground. He doesn’t seem to be breathing and his eyes have rolled back in his head. The other guy whips out his mobile phone and calls the emergency services. He gasps to the operator: ‘My friend is dead! What can I do?’ The operator, in a soothing voice, says: ‘Just take it easy. I can help. First, let’s make sure he’s dead.’ There is a silence, then a shot is heard. The guy’s voice comes back on the line. He says: ‘OK, now what?’”

–Dr. Richard Wiseman

The foregoing was ranked as the world’s funniest joke, “after almost two million people voted on 40,000 of them from 70 countries.” Despite its accolade as the most humorous joke in the world, whether you laughed aloud or raised an eyebrow is a subjectively determined experience. However, there are some findings that suggest there are some universal elements involved in the science of comedy.

To begin with, humans are not the only species that engages in the act of laughter. Numerous primate species laugh, most often as a result of tickling (or even when teased with the possibility of being tickled). Scientists can’t say for sure why primates laugh so readily, but, “Some think, from an evolutionary standpoint, primates started laughing to signal that a perceived threat wasn’t as dangerous as it seemed, while others link the laugh to teaching younger generations how to play and get along with each other.” Indeed, laughter appears to be extremely socially driven. Robert Provine found that, “Laughter has more to do with social relationships than humor. He found that people will laugh thirty times more when there are other people around than when alone.”

Of course, this is not to say that humor is incapable of eliciting laughter – on the contrary, it is often a crucial component. In one study in which participants viewed episodes of Seinfield and The Simpsons, neuroscientists “detected a two-part detection and appreciation process. Joke detection occurred in the left inferior frontal and posterior temporal cortices on the left side of the brain. The left side of the brain helps us sort through novel or unexpected information and cross-reference it to information already stored in our memories.” After our brains perceive the joke, our amygdales release a spate of dopamine, and in turn, “neurons called spindle cells further assist in the funny-making monkey business by transmitting the delighted emotion across the brain.” More specialized types of humor activate other brain regions; for instance, “Puns energize Broca’s area, the brain’s language control center.”

Successful humor often involves distorting our assumptions, and more specifically our “scripts” – these are “hypotheses about the world and how it works based on our previous life experiences.” Richard Restak explains: “It is the brain’s frontal lobes that make sense of the discrepancy between the script and the situation described by the joke or illustrated by the cartoon. This ability is unique to our species… We are the only creatures that possess a highly evolved working memory, which by creating and storing scripts allows us to appreciate sophisticated and subtle forms of humor. Neuroscientists often compare working memory to mental juggling. To appreciate a cartoon or a joke, you have to keep in mind at least two possible scenarios: your initial assumptions, created and stored over a lifetime in the temporal lobes, along with the alternative explanations that are worked out with the aid of the frontal lobes.”

So regardless of whether you’re a fan of slapstick comedy or you prefer highbrow word play, your brain’s ability to detect (“get it”) and appreciate (laugh at) a joke are highly evolved and incredibly intricate.

- By Betty Vine

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